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| Date/Time | Thumbnail | Dimensions | User | Comment |
current | 18:27, 20 October 2009 | | 3,000 × 2,409 (2.3 MB) | Pieter Kuiper | higher resolution from http://narademo.umiacs.umd.edu/cgi-bin/isadg/viewobject.pl?object=95114 |
| 19:12, 17 August 2008 | | 600 × 482 (104 KB) | Pieter Kuiper | {{Information |Description={{en|1=60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley.}} |Source={{NARA-image|id=558594}} |Author=Department of Energy (?) |Date=1939 |Permission={{PD-USGov-DOE}} |other_versions= }} < |
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